Emma Roberts engaged to 'American Horror Story' costar Evan Peters

WEST HOLLYWOOD, CA - FEBRUARY 24: Actors Emma Roberts and Evan Peters attend the 21st Annual Elton John AIDS Foundation Academy Awards Viewing Party at West Hollywood Park on February 24, 2013 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)

Actors Roberts, 22, and Peters, 26, have been dating since 2012. They met on the set of "American Horror Story," where he presumably fell in love with her when she did this.

According to People, Peters proposed in New York City over the holidays with a pink gold and diamond engagement ring. (Side note: Why do gold and diamonds have to be all different colors all of a sudden? This seems, to my admittedly gem-ignorant self, like a scheme to pass off some regular shiny rocks as diamonds.)

The happy couple then headed to London to ring in the New Year as only the newly affianced can (with lots of Facebook photos of rings, presumably).

It hasn't been an easy road for these two. Emma Roberts was arrested on July 7, 2013, for domestic violence. She and her then-boyfriend Evan Peters were staying in a Montreal hotel when a fellow guest heard them fighting and called the police. Because Peters had clear physical injuries, including a bloody nose, the actress was taken into custody.

However, Peters declined to press charges, so Roberts was released after a few hours, according to the Daily Mail.